Optical Coherence Tomography Angiography of Idiopathic Polypoidal Choroidal Vasculopathy

2016 ◽  
pp. 71-76 ◽  
Author(s):  
Mayer Srour ◽  
Giuseppe Querques ◽  
Eric H. Souied
Keyword(s):  
Optical Coherence Tomography ◽  
Polypoidal Choroidal Vasculopathy ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Choroidal Vasculopathy

scholarly journals Sensitivity, Specificity, and Limitations of Optical Coherence Tomography Angiography in Diagnosis of Polypoidal Choroidal Vasculopathy

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Yi-Ming Huang ◽  
Ming-Hung Hsieh ◽  
An-Fei Li ◽  
Shih-Jen Chen
Keyword(s):  
Optical Coherence Tomography ◽  
Sensitivity And Specificity ◽  
Polypoidal Choroidal Vasculopathy ◽  
Optical Coherence Tomography Angiography ◽  
False Positive Rate ◽  
Correct Diagnosis ◽  
Age Related Macular Degeneration ◽  
Optical Coherence ◽  
Age Related ◽  
Choroidal Vasculopathy

Purpose. To evaluate the sensitivity and specificity of optical coherence tomography angiography (OCTA) in differentiating polypoidal choroidal vasculopathy (PCV) from age-related macular degeneration (AMD). Methods. Fundus color photographs, spectral-domain optical coherence tomography, and fluorescein angiography (step 1) and OCTA (step 2) of 50 eyes that had PCV or AMD were presented to two ophthalmologists. The final diagnoses of PCV were masked. Sensitivity and specificity were calculated and compared to the 2-step approach (before and after OCTA) in detecting PCV. The limitations were also evaluated. Results. Of the 50 eyes, 31 were PCV and 19 were non-PCV. The sensitivity increased from 69.5% to 90% after OCTA; however, there was no significant improvement in specificity after OCTA. 70.9% of the eyes with PCV had clear or obvious branching vascular nets (BVNs) in OCTA with high sensitivity (97.5%) after OCTA. Contrarily, 29.1% had insignificant BVNs with a low sensitivity (72.5%) after OCTA. 27% of the occult choroidal neovascularization (CNV) cases were overdiagnosed as PCV when OCTA was applied. Conclusions. OCTA based on clear BVNs at the choroidal level increased sensitivity of diagnosis of PCV by 20%. However, the false-positive rate also increased in occult CNV. Several limitations for a correct diagnosis of PCV were noted.

scholarly journals Detection Rate and Diagnostic Value of Optical Coherence Tomography Angiography in the Diagnosis of Polypoidal Choroidal Vasculopathy: A Systematic Review and Meta-Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Yuelin Wang ◽  
Jingyuan Yang ◽  
Bing Li ◽  
Mingzhen Yuan ◽  
Youxin Chen
Keyword(s):  
Optical Coherence Tomography ◽  
Sensitivity And Specificity ◽  
Polypoidal Choroidal Vasculopathy ◽  
Detection Rate ◽  
Optical Coherence Tomography Angiography ◽  
Age Related Macular Degeneration ◽  
Cochrane Library ◽  
Optical Coherence ◽  
Age Related ◽  
Choroidal Vasculopathy

Purpose. This study aimed to evaluate the detection rate of polyps and branching vascular networks (BVNs) in polypoidal choroidal vasculopathy (PCV) by optical coherence tomography angiography (OCTA) and assess the sensitivity and specificity of OCTA in differentiating PCV from wet age-related macular degeneration (wAMD). Materials and Methods. We searched PubMed, EMBASE, Cochrane Library, and other sources. The detection rates of polyps and BVNs in observational studies and the sensitivity and specificity of PCV diagnosis from wAMD in diagnostic studies were extracted. Results. Twenty studies (573 eyes) were eligible. The combined detection rate of OCTA in PCV polyp lesion diagnosis was 0.67 (95% CI: 0.55–0.79), while that of BVNs was 0.86 (95% CI: 0.81–0.91). The detection rate of polyps was compared with that of BVNs in the same study, and the combined relative risk was 0.82 (95% CI: 0.72–0.92). The combined sensitivity of PCV diagnosis in wAMD patients using OCTA was 0.77 (95% CI: 0.55–0.90), combined specificity 0.84 (95% CI: 0.60–0.95), and area under the SROC curve 0.87 (95% CI: 0.84–0.90). Conclusion. OCTA has a high PCV polyp and BVN detection rate, and the detection rate of BVNs is higher than that of the polyp. OCTA has acceptable sensitivity and specificity for diagnosing PCV from wAMD. Thus, OCTA may be helpful for clinical diagnosis of PCV.

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